Many things went wrong to cause the deadly explosion in Beirut, Lebanon. In this episode of The NFPA Podcast, we examine some of the factors that may have led to the blast, from the improper storage of ammonium nitrate to unpermitted hot work. Angelo kicks off the episode with a conversation with Guy Colonna, a hazardous materials expert at NFPA, to discuss ammonium nitrate safety (2:20). Then, he speaks with Anas Alzaid, NFPA's representative to the Middle East, to discuss industrial safety in the region (17:50), before closing the episode with a chat with Laura Moreno, an NFPA engineer, to discuss hot work safety (36:25).